Oil-burner.



R. H. MATTHEWS.

OIL BUB-HEB.

112110111011 111.31) NOV. 20, 1012.

1,695,904. Patented May 5, 191 1 .member 11, sutlicient space ROBERT E. MATTHEWS, 0F AUSTIN, TEXAS.

OIL-BURNER.

Specification of Letters Patent.

Application filed'November 20, 1912. Serial No. 732,472.

To all whom it may concern Be it known that I, ROBERT H. MA'r'rHEws, a citizen of the United States, residing at Austin, in the county of Travis and State of Texas, have invented new and useful Improvements in Oil-Burners, of which the following is a specification.

This invention relates to hydrocarbon burners, the object in view being to provide a burner adapted to utilize any hydrocarbon -in connection with air under pressure,

and steam also under pressure from a boiler, the burner embodying means providing for 'a proper adjustment betweenthe supply-of air, oil and steam, so as to obtain the best results.

\Vith the above and other objects in view, the invention consists in the construction, combination and arrangement of parts, as will be hereinafter more fully described, illustrated in the accompanying drawings, and pointed out in the claim hereunto appended.

In the drawing :-Figure 1 is aside elevation of the burner and complete apparatus associated therewith. Fig. 2 is a longitudinal section on an enlarged scale through the nozzle.

For convenience in illustrating the invention, I have shown asteam boiler 1 con nected to a generator 2 arranged in the fire box underneath the boiler, a steam pipe 3 leading from the steam space of theboiler to the generator and communicating therewith at one end, as shown in Fig. 1. This steam pipe 3 is provided with a regulating valve at at any suitable point in the length thereof. The generator is composed of any desired number of parallel tubes 5 connected alternately at opposite ends by semi-circular or return unions 6. I

7 designates an oil pipe leading from a suitable oil pump, not shown, to the gener ator and communicating with the steam pipe 3 before the latter enters the generator 2.

8 designates an air supply "pipe leading to a source of compressed air or an air compressor, and communicating with and entering a nozzle, to which it is connected by a union 9 permitting the inner nozzle to be adjusted relatively to the outer nozzle. As shown in Fig. 2, the nozzle as a whole comprises an outer member 10 and an inner being left between the two to allow the steam and oil gas to enter the outer nozzle and pass around the inner nozzle, so as to be taken up by the air passing through the inner nozzle under pressure and delivered through the discharge orifice of the nozzle member 10, where the gas is ignited. It will be 'observed by reference to Fig. 2, that the nozzle member 10 has a tapering conical end portion 12', and' the inner nozzle-'member 11 has a. corresponding tapered or conical end- 13'. Furthermore, the inner nozzle member has a threaded connection with the outer member, as shown at l4, so that by turning the inner member 11, the space between the tapered end portions of the two nozzle members may be increased or diminished for the purpose of regulating the amount of steam andoil passing through the discharge end of the outer member 1.0 of the nozzle." In order to still further regulate the supply of oil gas and air, the air pipe 8 is equipped with a regulating. valve 15. A packing ring 16 backed up by a nut 17 on the. inner nozzle it provides for a tight joint between the outer and inner nozzles.

From the foregoing description, taken in connection with the drawings, it will be understood that the oil is forced under pressure through the pipe 7 into and through the generator. and is thereby generated into a gas, by being subjected to the flame of the burner, after the device has been started. The steam received from the. pipe 3 mingl'es with the oil gas, and together the oil gas and steam are carried into the outer section of the nozzle, where they. are taken up by the incoming air under pressure passing through the pipe 8 and inner section of the nozzle. By the adjustment referred to, theproper admixture of steam, air and oil gas, all under pressure, is obtained, the flow of said elements beingregulated by fth'e valves referred to. j I

From the fore oing description it 'will be seen that oil under pressure is conveyed to one end of the coil. steam under boiler pressure, is conveyed into the same end of the coil, a combined steam and oil nozzle receives the said oil and steam under pressure through a lateral inlet. and a compressed air nozzle is located within the first mentioned nozzle and adjustable relatively thereto to vary the discharge of the mingled oil gas and steam, while tlie compressed air supply pipe leading to the inner nozzle is controlled by a regulating-valve and the generating coil is composed of a series of parallel tubes which extend perpendicularly to the major Patented May 5, 1914.

axis of the nozzle and in the line or path of discharge therefrom. Thus the oil gas and air may be regulated as to their respective quantity, in order to obtain the best mixture while the flame resulting therefrom is directed across the straight runs or tubes of the coils, which runs or tubes extend perpendicularly to the path of the flame thereby materially assisting in the generation of the oil into vapor.

I claim A hydrocarbon burner comprising a generating coil, an oil pipe entering one end of said coil, a steam pipe entering the same end of said coil, a combined oil and steam nozzle having a lateral inlet into which the other end of the coil discharges, an air nozzle terminating within the body of the first men- ROBERT H. MATTHEWS.

Witnesses AMos FAULK, LoUIs FRANK.

was. en M 

